Jaime King had Jessica Alba on speed dial when she first became a mother.

The American actress welcomed son James Knight in October 2013, with husband Kyle Newman, and admits she was a clueless when it came to looking after a baby. However Jessica, who has daughters Honor, seven, and four-year-old Haven, was there with sage advice whenever she needed it.

“Jess Alba was always on speed dial for me,” Jaime confessed to ET. “I didn't know what I was doing when I had my first child and I had to go back to work so soon. I was terrified but I always call her… I think in the lifestyle we have, it’s very different and it's not as easy to navigate, and she does it so elegantly and seamlessly and so I'm very lucky.”

Jaime and Kyle added to their brood last year, with second son Leo Thames.

Rumours have been circulating that fellow actress Megan Fox is also expanding her family, with reports the Teenage Mutant Ninja Turtles actress is excepting her third child. The 29-year-old already has sons Bodhi and Noah with estranged husband Brian Austin Green, and while the news is yet to be confirmed, Jaime, 36, was quick to offer her well wishes.

“Oh, that’s so fantastic!” she beamed. “You’re outnumbered now, girl. Advice, I have two, think more the merrier!”

Megan set tongues wagging after a recent appearance at Las Vegas' annual CinemaCon, where she appeared to show off a pregnancy bump in her tight dress. Since the event, multiple sources have confirmed the news.

It’s not yet known if Brian is the father, as the pair split in 2015 after five years of marriage. However, they have been spotted together recently, leading many to speculate it could be the couple’s third arrival.